Description
Scalloped potatoes are a rich, creamy, and comforting dish made with thinly sliced russet potatoes layered in a cheesy, savory sauce and baked to golden perfection. Perfect as a side or main dish.
Ingredients
- 2 tablespoons unsalted butter
- 1 small yellow onion, finely chopped
- 2 cloves garlic, minced
- 2 tablespoons all-purpose flour
- 2 cups whole milk
- 1 cup heavy cream
- 1 ½ teaspoons salt
- ½ teaspoon black pepper
- ½ teaspoon ground mustard (optional)
- 3 pounds russet potatoes, peeled and thinly sliced (about 1/8-inch thick)
- 1 ½ cups shredded sharp cheddar cheese
- ½ cup grated Parmesan cheese
Instructions
- Preheat the oven to 375°F (190°C) and grease a 9×13-inch baking dish with butter or non-stick spray.
- In a medium saucepan, melt the butter over medium heat, then sauté the chopped onion for about 3-4 minutes until soft. Add the garlic and cook for another 30 seconds.
- Stir in the flour and cook for 1 minute to form a roux. Gradually whisk in the milk and cream until smooth.
- Season the sauce with salt, pepper, and ground mustard. Bring to a simmer and cook until slightly thickened, about 5 minutes.
- Remove the sauce from heat and set aside.
- Layer half of the sliced potatoes in the prepared baking dish. Pour half of the sauce over the potatoes, then sprinkle with half of the cheddar and Parmesan cheeses.
- Repeat with the remaining potatoes, sauce, and cheeses.
- Cover the dish with foil and bake for 45 minutes. Uncover and bake for another 25-30 minutes until the top is golden brown and the potatoes are tender.
- Let rest for 10-15 minutes before serving to allow the sauce to set.
Notes
- For extra heat, use cayenne pepper or pepper jack cheese.
- Yukon gold potatoes offer a creamier texture and buttery flavor.
- Broil for 2-3 minutes at the end for a crustier top.
- Vegetarian version can include mushrooms and spinach.
Nutrition
- Serving Size: 1/8 of dish
- Calories: 370
- Sugar: 4g
- Sodium: 570mg
- Fat: 22g
- Saturated Fat: 13g
- Unsaturated Fat: 7g
- Trans Fat: 0.5g
- Carbohydrates: 32g
- Fiber: 3g
- Protein: 10g
- Cholesterol: 65mg
